Daqing Oilfield Co., Ltd.

Petroleum and natural gas exploration, production, technology research and development, technical consulting services and mineral product marketing; basin and surrounding mineral resource exploration, production and mineral product marketing; self-operated import and export, foreign economic and technical cooperation; production of special equipment for oil drilling and perforation Equipment processing; storage tanks, pipeline physical cleaning, maintenance and technical services; oil and gas metering technology development and technical consulting services; downhole tool development, production, sales and maintenance; oil and gas field oil (gas) engineering planning and program design, oil production technology and equipment Tool production, sales and product (technical) testing; lubricants, auto parts, auto repairs, daily groceries, stationery, agricultural machinery and accessories, rubber products, sporting goods (except crossbows), health supplies, hardware products, building mate